Not sure what your professor wants? ASK!  However, the following writing samples may help clear up some of your confusion.  You should also find useful the links to step-by-step instructions.  Remember that these are generic examples and instructions that don't take into account the specifics of your professor's assignment.

Journal Writing

• How to
• Samples

  Scientific Writing

• Lab Report 
  • How to
  • How to 
  • Sample 1
  • Sample 2

• Scientific Journal

• Clinical Case Study
  • How to
  • Sample

• Abstract
  • How to
  • How to 
  • Sample

Bibliographic Writing

• Annotated Bibliography
  • How to
  • How to
  • How to
  • Samples

• Review of Literature
  • How to
  • How to  
  • Sample
    
    
• Sample Paper APA
• Sample Paper MLA

 Writing about Literature and the Fine Arts

• Book Review
  • How to
  • Sample

• Play Review
  • How to
  • Sample
    
     
• Art  Review
  • How to
  • Sample
    
     
• Concert Review
  • How to
  • Sample
     

Medical Writing

• Physician Diagnoses
  • How to
  • Sample
• Nursing Diagnoses
  • How to
  • Sample
• Nursing Care Plan
  • Sample

Legal Writing

• Legal Brief
  • How to
  • Sample

Applications

• Personal Statement
  • How to
  • Sample
• Resume
  • How to
  • Sample
• Cover Letter
  • How to
  • Sample

Proposals

• Research Proposal
  • How to
  • Sample
• Grant Proposal
  • How to
  • Sample

• Conference Proposal
  • How to 

Business Writing

• Standard Business Letter
  • How to
  • Sample
• Standard Memorandum
  • How to
  • Sample
• Progress Report
  • How to
  • Sample

• Business Plan
  • How to
  • Sample

Technical Writing

• Instructions
  • How to
  • Sample
• Feasibility Study
  • How to
  • Sample
• Design Report
  • How to
  • Sample

News Writing

• Editorial
  • How to
  • Sample
• Press Release
  • How to
  • Sample
• News Story
  • How to
  • Sample
• Magazine Feature
  • How to
  • Sample

Essay Exams

o   How to

o   How to

o   Sample